1994 Volvo 940 regina no charge

ONV70XC · Post by **ONV70XC** » 24 Sep 2014, 11:01

hi all done with putting together working relays, but still can't get charge of battery working on the brand new Denso alternator.
What's missing what could be missing? It looks like the alternator isn't engaging at all and no voltage increase across the batery terminals.

93Regina · Post by **93Regina** » 24 Sep 2014, 12:05

ONV70XC wrote:What's missing what could be missing?

Battery positive cable...and ground strap

ONV70XC · Post by **ONV70XC** » 24 Sep 2014, 12:17

B+ continuous with minimal to no drop

Post by **jimmy57** » 24 Sep 2014, 13:50

Does the warning lamp come on when key is turned of before start?
If not then rev engine over 3000 RPM and see if it charges.
The alternator needs that warning lamp circuit to provide initial exciter supply. IF that is missing it should still charge but it will take high engine speed to get it to begin to charge every time engine is started.

ONV70XC · Post by **ONV70XC** » 24 Sep 2014, 14:29

warning lamp check-engine or battery light?

ONV70XC · Post by **ONV70XC** » 02 Oct 2014, 10:10

finally the charge is solved. the autozone alternator was not wired properly with no signal wire fed to the regulator internally.